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EP0904905B1 - Composition and process for wood treatment - Google Patents

Composition and process for wood treatment Download PDF

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Publication number
EP0904905B1
EP0904905B1 EP98117724A EP98117724A EP0904905B1 EP 0904905 B1 EP0904905 B1 EP 0904905B1 EP 98117724 A EP98117724 A EP 98117724A EP 98117724 A EP98117724 A EP 98117724A EP 0904905 B1 EP0904905 B1 EP 0904905B1
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EP
European Patent Office
Prior art keywords
wood
animal blood
blood serum
metal salt
salts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98117724A
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German (de)
French (fr)
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EP0904905A3 (en
EP0904905A2 (en
Inventor
Sieglinde Bruhn
Jan Friedrich Dr.Rer.Nat. Gunschera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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Publication of EP0904905A2 publication Critical patent/EP0904905A2/en
Publication of EP0904905A3 publication Critical patent/EP0904905A3/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents

Definitions

  • the invention relates to a novel preventive Wood preservative based on an animal blood serum / metal complex and a corresponding method for Wood protection against wood-destroying Basidiomycetes.
  • US-A-4 180 412 describes the use of coagulated whole blood as glue for cellulose products.
  • GB-A-596 801 describes the use of whole blood for the Hardening and / or conditioning of the wood.
  • Another object of the invention is to provide a Process for preventive wood protection against wood-destroying Specify basidiomycetes.
  • the invention relates to the wood preservative by the characterizing features of claim 1 solved.
  • the subclaims show advantageous developments on.
  • the wood preservation process is characterized by the features of claim 6.
  • a wood preservative is proposed containing 80 to 99.5 wt .-% animal blood serum and use 0.5 to 20 wt .-% metal salt.
  • Animal blood serum which is obtained from fresh whole animal blood becomes, in connection with metal salts, metal ion complexes trains and excellent wood protection guaranteed.
  • Wood preservative is that a homogeneous layer is created which has a slight tendency to wash out with Owns water and which at the same time is surprising has high fixation to the wood matrix so that it is very difficult to remove.
  • noteworthy in the wood preservative according to the invention that in contrast to the use of whole animal blood only there is a slight discoloration of the wood.
  • wood preservative according to the invention is that the residual substances not required are problem-free can be disposed of and manufacture the complex is possible without energy expenditure. At the wood preservative according to the invention is still none Pollution of the environment by outgassing or diffusion expected. Because of the great availability the production of basic substances from animal blood, namely the animal blood serum, inexpensive and is a problem, there is a cheap wood preservative to disposal.
  • Essential in the wood preservative according to the invention is that an animal blood serum is used that is food grade has no anti-coagulant are clogged.
  • the animal blood serum must preserved or stabilized immediately after manufacture so that germs are not already in the animal blood serum train, which is then for later wood protection have a negative impact.
  • Such stabilization or Preservation is feasible and easy State of the art known.
  • the stabilization can e.g. be carried out with NaCl. NaCl is already successful as a preservative for a long time to protect animal and vegetable protein against microorganisms (pickled meat etc.).
  • animal blood serum is only for the production of animal blood serum required that whole animal blood be centrifuged or something is left for a long time until the serum settles.
  • Animal blood serum from whole bovine blood is preferred or whole pig blood.
  • Sugar is the primary nutrient of wood-destroying Fungi and is also used by fungal enzyme systems about the chain splitting of wood cellulose Provided.
  • Beef serum is therefore advantageous use.
  • Beef serum is also large Quantities available.
  • metal salts it is preferred to use them in one Use quantity from 0.6 to 4%.
  • metal salts it is preferred to use them in one Use quantity from 0.6 to 4%.
  • Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Al, Mo and / or Ag is used, iron and copper are particularly preferred or aluminum salts or mixtures thereof.

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

A wood protecting composition contains animal blood serum and a metal salt. Protection of wood against Basidiomycetes involves treatment with an animal blood serum-metal complex. A wood protecting composition contains 80-99.5 wt.% animal blood serum (preferably of foodstuff quality and especially obtained from bovine or porcine whole blood) and 0.5-20 (preferably 0.6-4) wt.% metal salt selected from salts of iron, copper and/or aluminum. (N.B. In a dependent claim and in the disclosure the metal salt is selected from salts of titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, aluminum, molybdenum and/or silver). An Independent claim relates to a method for the prophylactic protection of wood against degradation and decomposition by Basidiomycetes without contact with soil, by treating the wood with an animal blood-metal complex (no specific metals given).

Description

Die Erfindung betrifft ein neuartiges vorbeugendes Holzschutzmittel auf der Basis eines Tierblutserums/-Metallkomplexes und ein entsprechendes Verfahren zum Holzschutz gegen holzzerstörende Basidiomyceten.The invention relates to a novel preventive Wood preservative based on an animal blood serum / metal complex and a corresponding method for Wood protection against wood-destroying Basidiomycetes.

Herkömmliche Holzschutzmittel auf der Basis von Metallionen liegen entweder in Form anorganischer Salze vor, welche bei zahlreichen Anwendungen mit Chrom-VI-Verbindungen fixiert werden müssen, die als toxisch und canzerogen eingestuft werden. Darüber hinaus werden mit N-Cyclohexyldiazeniumdioxid (HDO) komplexierte Metallionen eingesetzt, wobei aufgrund schlechter Lösungseigenschaften der Einsatz in Holzschutzmitteln auf Wasserbasis erschwert wird. Nachteilig kommt hinzu, daß diese Holzschutzmittel hohe Herstellungskosten aufweisen. Ein Überblick über gängige Holzschutzmittel ist dem RÖMPP Chemielexikon, Band 3, 9. Auflage, ab Seite 1836, zu entnehmen.Conventional wood preservatives based on metal ions are either in the form of inorganic salts which is used in numerous applications with chromium VI compounds need to be fixed that are toxic and cancerogenic. Beyond that complexed with N-cyclohexyldiazenium dioxide (HDO) Metal ions used, due to poorer Solution properties of use in wood preservatives water-based is difficult. Another disadvantage is that these wood preservatives have high manufacturing costs exhibit. An overview of common wood preservatives is the RÖMPP chemistry lexicon, volume 3, 9th edition, from page 1836 onwards.

Nachteilig bei all diesen Holzschutzmitteln ist es jedoch, daß sie entweder teuer in der Herstellung oder aus toxikologisch bedenklichen Wirkstoffen aufgebaut sind.It is disadvantageous with all these wood preservatives however, that they are either expensive to manufacture or constructed from toxicologically questionable active ingredients are.

US-A-4 180 412 beschreibt die Verwendung von koagolationsgehämmtem Vollblut als Leim für Celluloseprodukte. GB-A-596 801 Beschreibt die Verwendung von Vollblut für die Härtung und/oder Konditionierung vom Holz.US-A-4 180 412 describes the use of coagulated whole blood as glue for cellulose products. GB-A-596 801 describes the use of whole blood for the Hardening and / or conditioning of the wood.

Ausgehend hiervon, ist es die Aufgabe der vorliegenden Erfindung, ein Holzschutzmittel anzugeben, das billig in der Herstellung ist und aus toxikologisch und cancerogen unbedenklichen Bestandteilen aufgebaut ist. Eine weitere Aufgabe der Erfindung ist es, ein Verfahren zum vorbeugenden Holzschutz gegen holzzerstörende Basidiomyceten anzugeben.Based on this, it is the task of the present one Invention to provide a wood preservative that is cheap to manufacture and toxicologically and cancerogenic harmless components is. Another object of the invention is to provide a Process for preventive wood protection against wood-destroying Specify basidiomycetes.

Die Erfindung wird in bezug auf das Holzschutzmittel durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Die Unteransprüche zeigen vorteilhafte Weiterbildungen auf. Das Verfahren zum Holzschutz ist durch die Merkmale des Anspruches 6 gekennzeichnet.The invention relates to the wood preservative by the characterizing features of claim 1 solved. The subclaims show advantageous developments on. The wood preservation process is characterized by the features of claim 6.

Gemäß der Erfindung wird vorgeschlagen, ein Holzschutzmittel enthaltend 80 bis 99,5 Gew.-% Tierblutserum und 0,5 bis 20 Gew.-% Metallsalz einzusetzen. Es hat sich nämlich überraschenderweise gezeigt, daß Tierblutserum, das aus frischem Tiervollblut gewonnen wird, in Verbindung mit Metallsalzen Metallionenkomplexe ausbildet und einen ausgezeichneten Holzschutz gewährleistet. Vorteilhaft beim erfindungsgemäßen Holzschutzmittel ist, daß eine homogene Schicht entsteht, die eine geringe Tendenz zur Auswaschung mit Wasser besitzt und die gleichzeitig eine überraschend hohe Fixierung an die Holzmatrix aufweist, so daß sie sich nur sehr schwer entfernen läßt. Erwähnenswert beim erfindungsgemäßen Holzschutzmittel ist ferner, daß im Gegensatz zur Verwendung von Tiervollblut nur ein geringfügige Verfärbung des Holzes eintritt. Weiter vorteilhaft beim erfindungsgemäßen Holzschutzmittel ist, daß die nicht benötigten Restsubstanzen problemlos entsorgt werden können und die Herstellung der Komplexe ohne Energieaufwand möglich ist. Beim erfindungsgemäßen Holzschutzmittel ist weiterhin keine Belastung der Umwelt durch Ausgasung bzw. Diffusion zu erwarten. Da aufgrund der großen Verfügbarkeit von Tierblut die Herstellung der Grundsubstanzen, nämlich des Tierblutserums, kostengünstig und problemlos ist, steht ein billiges Holzschutzmittel zur Verfügung.According to the invention, a wood preservative is proposed containing 80 to 99.5 wt .-% animal blood serum and use 0.5 to 20 wt .-% metal salt. Surprisingly, it has been shown that Animal blood serum, which is obtained from fresh whole animal blood becomes, in connection with metal salts, metal ion complexes trains and excellent wood protection guaranteed. Advantageous in the invention Wood preservative is that a homogeneous layer is created which has a slight tendency to wash out with Owns water and which at the same time is surprising has high fixation to the wood matrix so that it is very difficult to remove. noteworthy in the wood preservative according to the invention, that in contrast to the use of whole animal blood only there is a slight discoloration of the wood. Further advantageous in the wood preservative according to the invention is that the residual substances not required are problem-free can be disposed of and manufacture the complex is possible without energy expenditure. At the wood preservative according to the invention is still none Pollution of the environment by outgassing or diffusion expected. Because of the great availability the production of basic substances from animal blood, namely the animal blood serum, inexpensive and is a problem, there is a cheap wood preservative to disposal.

Wesentlich beim erfindungsgemäßen Holzschutzmittel ist, daß ein Tierblutserum eingesetzt wird, das Nahrungsmittelqualität besitzt und dem keine Antigerinnungsmittel zugesetzt sind. Das Tierblutserum muß sofort nach Herstellung konserviert bzw. stabilisiert werden, damit sich nicht schon im Tierblutserum Keime ausbilden, die sich dann für den späteren Holzschutz negativ auswirken. Eine derartige Stabilisierung bzw. Konservierung ist problemlos durchführbar und im Stand der Technik bekannt. Die Stabilisierung kann z.B. mit NaCl durchgeführt werden. NaCl wird bereits seit langer Zeit erfolgreich als Konservierungsmittel zum Schutz von tierischem und pflanzlichem Protein vor Mikroorganismen (Pökelfleisch u.a.) eingesetzt.Essential in the wood preservative according to the invention is that an animal blood serum is used that is food grade has no anti-coagulant are clogged. The animal blood serum must preserved or stabilized immediately after manufacture so that germs are not already in the animal blood serum train, which is then for later wood protection have a negative impact. Such stabilization or Preservation is feasible and easy State of the art known. The stabilization can e.g. be carried out with NaCl. NaCl is already successful as a preservative for a long time to protect animal and vegetable protein against microorganisms (pickled meat etc.).

Zur Herstellung des Tierblutserums ist es lediglich erforderlich, daß Tiervollblut zentrifugiert oder so lange stehengelassen wird, bis sich das Serum absetzt. Bevorzugt wird Tierblutserum aus Rindervollblut oder Schweinevollblut gewonnen. In Versuchen hat es sich als besonders vorteilhaft erwiesen, wenn Rindervollblut verwendet wird, da bei Schweineblut ein erheblich höherer Zuckergehalt im Blut vorhanden ist. Zucker ist der primäre Nährstoff der holzzerstörenden Pilze und wird auch von pilzeigenen Enzymsystemen über die Kettenspaltung der holzeigenen Cellulose zur Verfügung gestellt. Vorteilhaft ist deshalb Rinderserum einzusetzen. Rinderserum steht zudem in großen Mengen zur Verfügung.It is only for the production of animal blood serum required that whole animal blood be centrifuged or something is left for a long time until the serum settles. Animal blood serum from whole bovine blood is preferred or whole pig blood. Has tried it turned out to be particularly beneficial if whole cow blood is used because a pig's blood there is a significantly higher sugar content in the blood. Sugar is the primary nutrient of wood-destroying Fungi and is also used by fungal enzyme systems about the chain splitting of wood cellulose Provided. Beef serum is therefore advantageous use. Beef serum is also large Quantities available.

Bei den Metallsalzen ist es bevorzugt, diese in einer Menge von 0,6 bis 4 % einzusetzen. Erfindungsgemäß werden Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Al, Mo und/oder Ag eingesetzt, besonders bevorzugt werden Eisen, Kupfer oder Aluminiumsalze oder deren Mischungen verwendet.In the case of metal salts, it is preferred to use them in one Use quantity from 0.6 to 4%. According to the invention are Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Al, Mo and / or Ag is used, iron and copper are particularly preferred or aluminum salts or mixtures thereof.

Die Erfindung wird nachfolgend anhand der Figur 1 näher erläutert.

  • Figur 1 zeigt verschiedene Serum-Metall-Komplexe und den Massenverlust in % von Kiefernsplintholz nach vier Wochen Inkubationsdauer bei 20 bzw. 23 °C, verursacht von zwei holzzerstörenden Pilzen.
    • The invention is explained in more detail below with reference to FIG. 1.
  • Figure 1 shows various serum-metal complexes and the mass loss in% of pine sapwood after four weeks of incubation at 20 and 23 ° C, caused by two wood-destroying fungi.

    • Claims (6)

    1. Wood preservative containing 80 to 99.5% by weight of animal blood serum and 0.5 to 20% by weight of a metal salt selected from amongst salts of Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Al, Mo or Ag, or their mixtures.
    2. Wood preservative according to Claim 1,
      characterized in that the animal blood serum is food-grade animal blood serum.
    3. Wood preservative according to Claim 1 or 2, characterized in that the animal blood serum has been obtained from whole pigs' blood or whole bovine blood.
    4. Wood preservative according to at least one of Claims 1 to 3, characterized in that the metal salt amounts to 0.6 to 4%.
    5. Wood preservative according to at least one of Claims 1 to 4, characterized in that the metal salts are selected from amongst salts of Fe, Cu and/or Al.
    6. Process for the preventative protection of wood against the degradation and destruction by Basidiomycetes of wood which is not in contact with the soil, characterized in that wood is treated with a wood preservative according to Claim 1.
    EP98117724A 1997-09-29 1998-09-18 Composition and process for wood treatment Expired - Lifetime EP0904905B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19742985A DE19742985C1 (en) 1997-09-29 1997-09-29 Wood preservative and use of the wood preservative
    DE19742985 1997-09-29

    Publications (3)

    Publication Number Publication Date
    EP0904905A2 EP0904905A2 (en) 1999-03-31
    EP0904905A3 EP0904905A3 (en) 1999-11-17
    EP0904905B1 true EP0904905B1 (en) 2003-07-23

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    EP98117724A Expired - Lifetime EP0904905B1 (en) 1997-09-29 1998-09-18 Composition and process for wood treatment

    Country Status (4)

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    EP (1) EP0904905B1 (en)
    AT (1) ATE245516T1 (en)
    DE (2) DE19742985C1 (en)
    DK (1) DK0904905T3 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19935449B4 (en) * 1999-07-28 2004-03-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wood preservatives, manufacturing processes and their use
    US6753016B2 (en) * 2001-07-03 2004-06-22 Rohm And Haas Company Preservation of wood products

    Citations (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB596801A (en) * 1945-03-26 1948-01-12 Smithfield And Argentine Meat Process for hardening and conditioning wood

    Family Cites Families (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2715501C3 (en) * 1977-04-06 1981-02-19 Karl Dr.Phil.Nat. 3252 Bad Muender Buennig Process for producing an adhesive from animal blood or from blood components

    Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB596801A (en) * 1945-03-26 1948-01-12 Smithfield And Argentine Meat Process for hardening and conditioning wood

    Also Published As

    Publication number Publication date
    ATE245516T1 (en) 2003-08-15
    DK0904905T3 (en) 2003-11-24
    EP0904905A3 (en) 1999-11-17
    DE19742985C1 (en) 1999-04-29
    EP0904905A2 (en) 1999-03-31
    DE59809068D1 (en) 2003-08-28

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